Spring-hinge



No. 609,585. Patented Aug. 23, [898. J. KEENE.

SPRING HINGE.

(Application filed r. 18, 1898.) (No Model.) v R mu gy ive/6Z2)? oiZTorizg Qi NITED STATES JOSEPH KEENE, OF CHICAGO, ILLINOIS.

,SPRING -HlNGE.

SPECIFICATION forming part of Letters Patent No. 609,585, dated August 23, 1898.

Application filed A ril 18, 1898.

To all whom it may concern.-

Be it known that I, JOSEPH KEENE, a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hinges, of which I do declare the following to be a full, clear, and exact description.

The present invention has relation more particularly to that class of hinges known as spring-hinges and the object of the invention is to provide an improved construction of hinge-leaf, whereby one end of a spring is connected to the hinge.

The invention will be hereinafter described with reference to the accompanying drawings and particularly defined at the end of the specification.

Figure 1 is a front view of a spring-hinge embodying my invention, the door to which the hinge is attached being shown as open and brought to a point parallel with the door-jarnb.

Fig. 2 is a view in elevation of a partiallyshaped plate-metal blank from which my improved hinge-leaf will be formed. Fig. 3 is a lower end view of the blank shown in Fig. 2. Fig. 4D is a view in elevation of the finished hinge-leaf shown in Fig. 2. Fig. 5 is a bottom plan view of the leaf shown in Fig. 4. Fig. 6 is a view in vertical section through the eye at one side of the body of the hinge-leaf, a portion of the leaf being shown in elevation. Fig. 7 is a view in cross-section online 7 7 of Fig. 4.

In Fig. 1 of the drawings I have shown my invention as embodied in a double-acting spring-hinge of the type set forth in United States Letters Patent No. 227,786, granted to Daniel W. Housley May 18, 1880, this being the type of hinge to which my invention is more especially applicable, although it will be understood that the invention is not restricted to this precise form of binge, since it is susceptible in hinges of other construction.

A and B designate, respectively, the door and door-jamb to which the plates or castings O of the hinge will be attached. At the upper and lower ends each of the plates or castings C has connected thereto a pintle-sup port D, united by a suitable pintle E with the adjacent intermediate or central leaves F and G. The upper intermediate leaf F is an no. 677,994. (No model.)

behind the intermediate leaves F and G (shown in Fig. 1) there will be suitable pintlesupports D; but the location of these supports is the same as in ordinary double 1 acting hinges, and as they form no part of this invention it has not been deemed necessary to illustrate them in the drawings.

The present invention relates particularly to the construction of the intermediate leaf F, and more especially to the means whereby this leaf is adapted for connection with the spindle H, to which the upper end of the coilspring J is attached. The hinge-leaf F is formed from a blank of sheet-steel, the edges of which are preferably cut, so that when bent they shall form the pintle-sockets 2 and 3 at the sides of the leaf. In order to form the eye at the base of the upper intermediate leaf, I firstcut the blank with an extension f, in which is formed an eye f, and in the edges of this extension f are preferably formed the notches f. The extension fis connected with the body of the leaf F by a contracted neck f and the neck of the extension is of sufficient'length to permit it to be doubled or folded upon itself, as clearly shown in Figs. 2 to 6 of the drawings. At the sides of the base of the neck f whereby the extension f is connected with the body of the leaf, are formed the slits f to form a recess adapted to receive the extension f and guard the same against lateral strain. Preferably, also, the lower edge of the leaf F is provided with lugs f that depend from the lower edge of the leaf at each side of the neck f and these extensions are adapted to enter the notches f in the edges of the extension f whenthe extension is doubled upon itself, and the lower ends of the lugs f are then forced inward, as shown in Figs 4 and 6 of the drawings, so as to overlap the lower face of the extension f and firmly brace and retain the same against all strains incident to the action of the spring. In the lower portion of the leaf F and above the extension f is formed an aperture fhthat is adapted to register with the aperture f after the shank or neck of the extension f has been doubled upon itself, the purpose of this aperture f and of the aperture f being to receive the upper portion of the springspindle H, as clearly seen in Fig. 1 of the drawings.

After the blank from which the leaf F is to be formed has been cut it will by means of suitable dies be brought by successive operations to the shape shown in Figs. 2 and 3 of the drawings, after which the extension f will be forced toward the body of the leaf, thereby doubling the shank or neck f upon itself and causing the extension f to enter the recess of the body formed by the removal of a portion of the shank formerly between the slit at the lower edge of the leaf. At such time the lugs f will pass through the notches f and the ends of the lugs will be upset, so as to lap over the outer face of the extension f, as seen in Figs. 4 and 6, and thus securely retain the extension f against possible distortion incident to the action of the spring J. When the extension f has been thus brought to the position seen in Figs. 4, 5, and 6 of the draw ings, the aperture f will register with the aperture f so that the spindle H can be inserted through the aperture f and into the aperture f The spindle H will be provided with the usual holes h, adapted to receive a pin h, whereby the spring will be retained in any position to which it may be adjusted. In order to more securely retain the pin h in place, I form the edges of the aperture f on the front and back side of the hinge-leaf F with notches or depressions f into which the ends of the pin h will pass.

By forming the hinge-leaf F with an extension f integral therewith and by forcing this extension into a recess formed in the body of the leaf by the removal of a portion of the shank between the slit f of the body the extension f will be securely braced. So, also, by forming notches f in the extension f, as I prefer to do, a still more eifective guarding of the extension, particularly against torsional strains, is afforded. So, also, the provision of lugs j", that extend beyond and are upset against the extension f, still more effectively serve to retain the extension in place and give rigidity thereto.

It is manifest that my invention may be practiced without the employment of all of the details above set forth, and I do not therefore wish the invention to be understood as restricted to such details except as the same are specifically defined in the following claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A leaf for a spring-hinge consisting of a plate of sheet metal one edge of which has formed integral therewith a perforated extension, said extension being bent at an angle to the body of the hinge-leaf and folded upon itself and into a recess in the body of the leaf, the body of the hinge-leaf being provided with an aperture above said extension.

2. A leaf for a spring-hinge consisting of a plate of sheet metal one edge of which has formed integral therewith a perforated extension, said extension being bent at an angle to the body of the hinge-leaf and folded upon itself and into a recess at the edge of theleaf, said extension being provided with notches to receive adjacent parts of the leaf-body, the body of the leaf being provided with an aperture above said extension.

3. A leaf for a spring-hinge consisting of a plate of sheet metal one edge of Which has formed integral therewith a perforated extension, said extension being bent at an angle to the body of the hinge-leaf and folded upon itself, the body of the hinge-leaf being provided at the base of said extension with lugs between which said extension rests, said lugs engaging said extension to hold the same in place.

JOSEPH KEEN E.

Witnesses:

OLIVER COLLINS DENNIS, ALBERTA ADAMICK. 

